Answer to Question #261340 in Molecular Physics | Thermodynamics for Mwalimu

Question

A reactor’s wall 320 mm thick, is made up of an inner layer of fire brick

(k = 0.84 W/m°C) covered with a layer of insulation (k = 0.16 W/m°C). The reactor operates at a

temperature of 1325°C and the ambient temperature is 25°C.

(i) Determine the thickness of fire brick and insulation which gives minimum heat loss.

(ii) Calculate the heat loss presuming that the insulating material has a maximum tem￾perature of 1200°C.

If the calculated heat loss is not acceptable, then state whether addition of another layer of

insulation would provide a satisfactory solution

Answer 1

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